Mandrel attachment



(No Model.)

L. W. B0$LEY. MANDREL ATTAOHMBNT.

Patented Mar. '7, 1893.

' ken away, showing my improved device in NITED STATES PATENT 'FFICEsLEE W. BOSLEY, OF GAINESVILLE, TEXAS.

MANDREL ATTACHMENT.

SPECIFICATION forming part of LettersjPatent No. 492,77 5, dated March7, 1893.

Application filed April 19, 1892. j

To all whom it may concern:

Be it knownthat I, LEE W. BOSLEY, a citizen of the United States,residing at Gainesville, in the county of Cooke, State of Texas, haveinvented certain new and useful Improvem ents in Mandrel Attachments, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

This invention relates to certain new and useful improvements in mandrelattachments and it has for its objects, among others, to provide asimple, cheap, durable and efficient device which may be readily appliedor detached when necessary and which will permit of the desiredadjustments and for the swinging or pivotal movement for the placing onor taking off of the work. I provide a bar at one end with a plate forits attachment and at the other end with a cam and eccentric fordetachable connection and adjustment the support carrying the cam andeccentric being hinged so as to drop down so that cylinder work can beslipped over the mandrel and then the eccentric and cam raised up andtightened to the bar to hold the work to be performed.

Other objects and advantages. of the invention will appear in thefollowing description and the novel features thereof will beparticularly pointed out in the claims.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon form a part of thisspecification, and in which Figure 1 is a side elevation with partsbroposition for use. Fig. 2 is a vertical cross section through the line2 z of Fig. 1.

Like letters of reference indicate like parts in both views.

Referring now to the details of the drawings by letter-A designates themandrel of known construction with the longitudinal recess a, and B is aplate having jaws I) designed to embrace the larger end of the mandreland provided with set screws 1), by which it is held thereto. This platehas a socket 5 in which is seated the pintle c, of the head 0, beingprovided with a shoulder o, resting upon the top of the plate B, as seenin Fig. 1, the pintle being provided with a horizontal Serial No.429,701. (No model.)

groove or slot 0 for the reception of the end of the bolt 0, which isscrewed through the plate B, and into said groove or slot to preventvertical displacement of the head 0, and still permit of its being swungaround to either side of the mandrel as occasion may require. tnre forthe passage of the bar D, and is also provided with a flange 0 throughwhich passes the set screw 0 which together with the screw 0 providesfor vertical adjustment of the bar D, to any desired height.

The barD is held at one end in the head in the manner above describedand at its other end in the following manner:E is a clamp designed toembrace the end of the mandrelwith onejaw e, fitting in the groove 0, asseen in Fig. 1, and its other jaw bearing upon the upper side of themandrel, a set screw 6 being provided to hold it firmly in place; theclamp may be provided with a handle or thumb piece e if desired. Pivotedor hinged to this clamp, as at f, are the bars F, between which, at apoint to' receive the lower edge of the bar D, is a cam F, and betweenthe same, at the upper ends, in position to engage the upper end of saidbar is arranged a cam F pivoted at f, and having a handle f by whichsaid cam This head is provided with an aper- V or eccentric F may bemanipulated to engage or disengage the bar. The upper ends of the armsor bars F, are rounded, as shown at f and provided with stop lugs fwhich are designed to be engaged by a pin or pins f, on the eccentric.

The cam F, permits of adjustment of the bar D, to the proper height andthe eccentric serves to tighten the bar against said cam, the hinge orpivotof thearms F, carrying'said cam and eccentric allowing the same todrop down into the position shown in dotted lines in Fig. 1, for theplacing on of the work and then turned up into position shown in fulllines and tightened upon the bar D.

The groover consists of two wheels G and G, the one being grooved, asseen in Fig. 2, for grooving and the other flat or not grooved forclosing the seam; these wheels are journaled on suitable axles orpintles 9 held between the two flat plates G as seen best in Fig. 2, thesaid plates being pivoted upon the pivot g, to which are connected thehandles g as seen best in Fig. 2.

H are plates arranged upon the outside 'of the plates 9 and alsopivotally supported upon the ,pin g. Between these plates, at oppositeends thereof, are the anti-friction rollers 71., upon which the bar D,is designed to move and atthe upper end or edges of said plates is theroller or pin h, designed to limit the upward movement of the bar.Pivoted on the pin g, and outside of the plates H, is the tilting frameI, provided at its upper end with a suitable handle 'i, and carrying, atits upper end the an gularly disposed arms J, and J, which are arrangedto extend upon opposite sides of the bar D, and to engage alternatelythe upper edges of the plates G as seen best in Fig. 2. The tiltingframe I is bifurcated at its lower end, and the bifurcations form springportions 2" which are designed to pass under the spring arms K, whichare held upon the shaft 9 and extend in opposite directions therefromcarrying at their outer ends pins k, which are designed to engage holesis, in the plates H, and G to hold the same from tilting. When thetilting frame is moved so that its arms J, J, come in contact with theupper edges of the plates G the lower ends 71', of said frame passalternately under and impinge against the inner face of the arms K, andthus remove the pin from the arm forced out from engagement with itsholes in the plates so as to permit the same to tilt, so that when onewheel is in use the other is elevated out of the way. The pin or wheelor roller It works on the top of the bar D, thus keeping the whole fromfalling off1 from the bar when thrown around to one si e.

Modifications in detail may be resorted to without departing from thespirit of the invention or sacrificing any of its advantages.

What I claim as new is- 1. The combination with the mandrel and bar, ofthe pivoted bars and the cam and eccentric carried thereby andconstructed to engage the main bar, and means for connecting the mandreland bar at the end opposite said pivoted bars as set forth.

2. The combination with the mandrel and bar, of the clamp to engage themandrel, the bars pivoted, to the clamp, and the cam and eccentriccarried by the bars and constructed to engage the main bar and means forconnecting the mandrel and bar at the end opposite said pivoted bars, asset forth.

3. The combination with the mandrel and bar, of the clamp at one endcarried by a swiveled head and having jaws, means at the other endconnecting the mandrel and bar,

and means for vertical adjustment of the bar, as set forth.

4. The combination with the mandrel and bar and the swiveled head withits clamp plate and adjusting means, of the clamp at the other end withits cam and eccentric constructed to engage the main bar, as set forth.

5. The combination with the mandrel and bar with its swiveled head andadjustable clamp at one end, of the adjustable clamp with its pivotedbars at the other end and the cam and eccentric carried by the said barsand adapted to embrace the main bar upon opposite faces, as set forth.

6. The combination with the mandrel and bar, and means at each endconnecting the mandrel and bar, of the groover slidingly arranged on thebar and comprising a tilting frame, as set forth.

7. The combination with the mandrel and bar and its attaching means, ofthe groover frame slidingly arranged on the said barand comprising atilting frame and rocking arms for tilting the frame, as set forth.

8. The combination with the mandrel and bar, and the latters attachingmeans, of the groover frame, the tilting plates thereon, the spring armswith their pins and the rocking tilting arms, as set forth.

9. The combinationwith the mandrel and the bar and its attaching means,of the groover slidingly arranged upon said bar, the tilting plateshaving holes, the rollers, the tilting frame with its spring arms, andthe spring arms engaged thereby and carrying pins substantially as andfor the purpose specified.

10. The g'roover consisting of the parallel plates, the wheels journaledtherein, the plates embracing said plates, and pivoted on the samepivots, the tilting frame with its bifurcations and alternately-arrangedarms carried thereby, and the spring arms with their pins constructedand arranged to co-operate with a mandrel and a bar carried thereby, asset forth.

11. The combination with a mandrel and its bar, of the groover wheelsand the plates carryingthe same, the tilting frame with its lower sidesbifurcated and serving as spring pawls, the spring arms actuatedthereby-and carrying pins, and the roller at the top of the frame totravel upon the top of said bar, as set forth.

In testimony whereof I affix my signature in presence of witnesses.

LEE W. BOSLEY \Vitnesses:

GEo. N. RIoE, SAMUEL W. ENGLISH.

IIO

